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Article: Novel self-configurable current-mirror techniques for reducing current imbalance in parallel Light-Emitting Diode (LED) strings

TitleNovel self-configurable current-mirror techniques for reducing current imbalance in parallel Light-Emitting Diode (LED) strings
Authors
Li, SNZhong, WXChen, WHui, SYR
KeywordsCurrent Balance
Current Mirrors
LED
Issue Date2012
PublisherIEEE
Citation
IEEE Transactions on Power Electronics, 2012, v. 27 n. 4, p. 2153-2162 How to Cite?
DOI: http://dx.doi.org/10.1109/TPEL.2011.2169459
AbstractTraditional current-mirror methods require one fixed current reference for controlling other current source or sources. In this paper, a new self-configurable current-mirror method that can dynamically determine the best current branch as the current reference in order to ensure good balance of all parallel current sources is proposed. The operating principle involves a dynamic and self-configurable transistor-based current-balancing circuit that can be operated in saturation or linear mode. In either operating mode, good current balance or sharing among all parallel-connected current sources can be guaranteed. The novel current-balancing circuit does not require a separate power supply for powering their control circuits. The proposal is a modular one that can be expanded to any number of parallel current sources. Its principle has been successfully applied to current balancing of parallel LED strings. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155739
ISSN
0885-8993
2021 Impact Factor: 5.967
2020 SCImago Journal Rankings: 2.159
ISI Accession Number ID
WOS:000300581500045
Funding AgencyGrant Number
Hong Kong Research Grant CouncilHKU 114411
Funding Information:

Manuscript received March 1, 2011; revised May 20, 2011 and July 13, 2011; accepted September 5, 2011. Date of current version February 20, 2012. This work was supported by Hong Kong Research Grant Council under project HKU 114411. Recommended for publication by Associate Editor M. Ponce-Silva.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorLi, SNen_US
dc.contributor.authorZhong, WXen_US
dc.contributor.authorChen, Wen_US
dc.contributor.authorHui, SYRen_US
dc.date.accessioned2012-08-08T08:35:06Z-
dc.date.available2012-08-08T08:35:06Z-
dc.date.issued2012en_US
dc.identifier.citationIEEE Transactions on Power Electronics, 2012, v. 27 n. 4, p. 2153-2162en_US
dc.identifier.issn0885-8993en_US
dc.identifier.urihttp://hdl.handle.net/10722/155739-
dc.description.abstractTraditional current-mirror methods require one fixed current reference for controlling other current source or sources. In this paper, a new self-configurable current-mirror method that can dynamically determine the best current branch as the current reference in order to ensure good balance of all parallel current sources is proposed. The operating principle involves a dynamic and self-configurable transistor-based current-balancing circuit that can be operated in saturation or linear mode. In either operating mode, good current balance or sharing among all parallel-connected current sources can be guaranteed. The novel current-balancing circuit does not require a separate power supply for powering their control circuits. The proposal is a modular one that can be expanded to any number of parallel current sources. Its principle has been successfully applied to current balancing of parallel LED strings. © 2011 IEEE.en_US
dc.languageengen_US
dc.publisherIEEE-
dc.relation.ispartofIEEE Transactions on Power Electronicsen_US
dc.subjectCurrent Balanceen_US
dc.subjectCurrent Mirrorsen_US
dc.subjectLEDen_US
dc.titleNovel self-configurable current-mirror techniques for reducing current imbalance in parallel Light-Emitting Diode (LED) stringsen_US
dc.typeArticleen_US
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_US
dc.identifier.authorityHui, SYR=rp01510en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TPEL.2011.2169459en_US
dc.identifier.scopuseid_2-s2.0-84863177858-
dc.identifier.hkuros208780-
dc.identifier.hkuros242568-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84857480157&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume27en_US
dc.identifier.issue4en_US
dc.identifier.spage2153en_US
dc.identifier.epage2162en_US
dc.identifier.isiWOS:000300581500045-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLi, SN=55028284800en_US
dc.identifier.scopusauthoridZhong, WX=36086926100en_US
dc.identifier.scopusauthoridChen, W=55030537700en_US
dc.identifier.scopusauthoridHui, SYR=7202831744en_US
dc.customcontrol.immutablejt 130328-
dc.identifier.issnl0885-8993-

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